Automatic valve.



' E. E. SUCK.

Y AUTOMATIC VALVE. APPLICATION .IFILED FEB. 9.1915.

Patented Nov. 2?', 191?.

gil/V www @@Me.,

@ @ifm/W Te all whom may concern.:

n. smeg, or wnsriuoN'r BOROUGH, PENNSYLVANIA..

AUTOMATIC VALVE.

naaaoee.

i Specification of Letters Patent.

Application led February 9, 1915. Serial No. 7,092.

Be it known that l EDWIN E. SLICK, a citizen ofthe United tates,residing in the borough of Westmont, in the county of Cambria ,and State.of Pennsylvania, (whose post-oce address is Johnstown, Pennsylvania,)have invented certain new and useful Improvements in Automatic Valves;and Ido hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in jvalve of a thin plate, preferab the art to which it appertains to makeand use the same.

My valve is designed to automatically control the How of fluids throughports or open- I. ings governed thereby, in blowing engines,

air pumps, air compressors, or other fluid pressure mechanisms, and onaccount of its L light weight and conformation, the valve moves with aminimum amount of inertia or momentum, and consequently 1scomparatively. silent and free from destructive eects to itself, -itsseat or adjacent portions of the construction. A

Lprefer' to formthe movin part of my y of steel or other meta-l, and inthe illustration herewith, lf have shown these valves as dat andannular, but theymayV be of any other outline such as" elliptical,rectangular, or of other ,i forms as will-.be readily understood. The

moving partL ofy theyalve itself is normally held to its seat byaplurality of light springs which may behe,1ieal,u,leaf form, involuteor other shape, leuten-any case they should 1 be as light as possibleinorder, to control the valve without undue pressure or Iviolent ac-'tionv and thestrength of ,the lsprings may vary, dependent somewhat onthe speed and amplitude of rtheir movement v.and pressures to becontrolled.,

The valve is seated uponiaiport or ports of outline corresponding tothat of the valve itself butsomewhat narowerhso/ that lthe edges ofthevalveoverlap the port Kand in order tol insure the. properreglstryfof the valve and portl ,provide stationary guides whichvcontactwitlithe'edge or edges of the valve and, I naintainj` ,it in properlUrelation with thesaid ports, durin its backward and forwardmovementand, w en closed.f.1 1 also provide a backing fonthefvalveatasuitable distance Ifrom .thefseat whichiorms a stop for the valve at,thedesired limit ofvits opening motion.

My valves arethin and .formed-of comparativel narrow strips of metal ofannular or other orm and by reason of this they are very Vcheaply madeand on account of their shape and proportions will not be subject toexcessive stresses, strains or deflections and consequently will not besubject to destruction or breakage, whereas in valves of largerdimensions and other forms, the stresses and strains frequently exceedthe elastic limits of the materials resulting in repeated breakages. y

Owing to its annular form, my plate valve can be made from a slice of around bar of steelV 0r other metal, which is cut cross wise of itslongitudinal axis. The center or inferior part of the metal can bepunched out andkth/rown away and the exterior ring of superior metalcanibe used for the valve. If desired, Ythis ringfofouter metal cut fromPatented Nov. 2'?, 1MM 7.

a round barfcal. beffrgedf'or otherwise drawn out thinner "and oflargerfdiameten and then `finished iDfits -linal' form 'by ma# chiningand polishing. This latter"v practice gives avalve of the verybestmaterial'andV make the matter more clean] referto the annexed' sheetQof'drawingsfin which like characters and like figures 'denote likeparts:

Figure l is a central cross.sectional ele` Vation of my automatic valveshowing the annular valves, valve seats, guides, stop, springs, springguides and other portions, lthis View being taken on the line I--I ofFig.2. .i L

Fig. 2 is a planview yof Fig. 1, showing an upper. view/of thevalvestop,"`with the annular valves themselves indicated bythelargerdottedfcircles. 'i A lFig. 3 is a plan view of thev valve seatwith the` stop and valves removed for `the sake of clearnes's ofillustration. I

IFig. 4 is a central cross sectionall eleva'- tion,` of a slightlymodified form of valve showing the use of leaf :springs instead of thehelical springs of Fig. l, this being taken l on the line lV-IV of Fig.5.

VFig. 5 is a plan'view looking within the valve-stop corresponding toFig. 4, but with the seat portion removed 4showing the Ileaf ring,

- therein,

springs partly in and partly projecting from the interior annular grooveand guide, while in this view the corresponding springs in the outerannular guide therefor have been removed to show the construction moreclearly. Fig. 6 is a side springs and their holder, which are adaptedto'it in the outer annular groo've of the valve stop of Figs. 4 and 5.

Fig. 7 is a plan' view of the movable annular plate portions of my valveshowing two of these rings, viz :an inner and outer this view beingdrawn on a reduced scale as compared with the other illustrations.

lFig. 8 is a side elevation of an involute inner spring which can beused with' the form of valve shown in Figs. 4 and 5.

Fig. 9 is a perspective view of one of the spring casings or plungerscorresponding to Figs. 1 and 2.

Referring now to the characters on the drawings 1 indicates a casingwith valve seats formed on the upper surface thereof and.

annular ports therethrough, the valve seats being shown as annular inshape, 2 is an intermediate annular ring between the valve ports, 3 isthe hub of the casing, 4 indicates a threaded openin formed in the hub,5 represents radial ri s of the casing, 6, is the inner port in thevalve casing, 7 is the outer port in the same, 8 is the outer ring ofthe sto and 9 are radial ribs to strengthen and sti en the construction,the edges of which also form guides for the ring valves. 10 is the innerring of the stop, 11 are enlarged sockets formed integral with the rings8 and 10, provided with the holes 12 therein, which holes are adapted torelieve the air pressure within the sockets due to the backward andforward motion of the spring plungers thereby permitting the valve torespond quickly to the pressures to which it is subjected. It will benoted that the stop rings 8 and 10 are flat on the surface whichcontacts with the vannular disks and are preferably narrow so that theydo not permit the compression of fluid between their surfaces and thatof the disks. These stops limit the'opening distance of the valves, but,by reason of their form and construction, have nol other effectwhatsoever, and the ample free space around them permits the fluidbetween them and the valve to escape immediately upon the approach ofthe valve. Thesestops, therefore, only limit the movement of the valveswhen the valves come into forcible contact with them.

In addition to this, it should be further noted that the ribs or guides9 are comparatvely narrow and merely contactv with small portions of theedges of the annular disks in order to guide them, without in anyelevation ofthe leaf manner interfering with their free move- ,ment andwithout stopping the flow of the fluid or causing any compressionthereof' which compression, if it occurred, would cause a sluggishmovement of the annular disk valve.

In valves which have stops that .are comparatively wide and particularlythose stops which are not flat and which have downwardly projectingedges forming pockets, there is considerable resistance offered to t-heopening movement of the valve, due to the compressed fluid between thevalves and the stop as the valve approaches its limiting position withthe prejudicial result of offering increased resistance to the fluidpassing through the port and causing a slow and sluggish action of thevalve, which consequently does not open or close freely when it should,thereby causing irregularities in its action and loss of eiiiclency.

13 represents springs mounted in the sockets and provided with guideplungers 14 as shown, which plungers serve-to keep the helical springsin position and reduce the possibility oftheir coils contacting with theedges of the sockets. In laddition to the openings 12, I may alsoprovide grooves 15 in the plunger, which serve ya similar purpose. Theinner and outer valves which are shown as plates of annular form areindicated as 16 and 17 respectively; while 18 is a threaded projectionon the stop portion adapted to receive the female threaded portion ofthe valve casing hub 3, as shown.

Referring now to Figs. 4 and 5:-19 and 20 indicate an outer and an innergroove respectively, shown of annular form, adapted to contain the leafsprings and their holder, the sides of which grooves also serve to guidethe springs during their backward and forward movement.

21 represents a spring holder lwhich, by means of its bent portion 22,holds the leaf springs 23, as shown, while 24 is a form of involutespring which may be used in connection with the valves illustrated inFigs. 4 and 5. A

The guides which contact with the edges of the valves and serve tomaintain them in position durin their movement are indicated as 25. T eplate valves illustrated in any one group are shown in the same plane,but if desired, I may use a plurality of plate valves on differentplanes, .the general shape of the structure thus being conical.

Although I have shown and described my improvements in considerabledetail, I do not wish to be limited to the exact and specific detailsshown and described, but may use such substitutions, modifications orequivalents thereof, as are embraced within Vthe scope of mysinvention,or astpointedtout in the claims.

Having thus described my invention, what intense l claim and desire tosecure by Letters Patent is l. A valve comprising an annular diskmounted on a seat and over a port of corresponding annular form, and afiat, substantially continuous stop centrally located with respect toand opposite said disk.

2. A valve comprising a plurality of thin annular disks concentricallymounted, a corresponding plurality of seats' provided with ports ofoutline similar to but narrower than said disks, and flat, substantiallycontinuous stops centrally located with respect to and opposite saiddisks, said stops being substantially parallel to the seats aforesaid.

3. A 4valve comprising'an annular disk, a seat containing a port ofcorresponding form, narrow ribs adapted to guide said disk in itsbackward and forward motion, thereby maintaining its registry with saidport, and a fiat, substantially continuous stop centrally locatedWit-lnl respect to and opposite said disk. l

4. A valve comprising an annular disk, a seat containing a port ofcorresponding outline but narrower than said valve, a Hat, substantiallycontinuous stop centrally located With respect to and opposite saiddisk, and springs mounted in said stop adapted to contact with the backof the valve.

5. A valve comprising a fiat annular disk, a seat having a port orIoutline corresponding to but narrower than said valve, a iat, narrow,substantially continuous stop centrally located with respect to andopposite ggg said disk, said stop being provided with enlargements,forming sockets, springs mount ed in said sockets and adapted to contactwith the back of the valve, and means for guiding said springs duringtheir movements.

6. A valve comprising a plurality of dat annular disks, a seat havingports of outline corresponding to but narrower than said valves, flatseats adjacent the edges of said ports adapted to cooperate with thedisks and thereby close said ports, narrow, Hat, substantiallycontinuous stops centrally located With respect to and opposite saiddisks, and a plurality of springs mounted within said stops adapted tohold said disks normally on their seats.

7. A valve comprising a plurality of Hat annular disks, seat portionsprovided with ports of outline corresponding to but narrower than saiddisks, Hat, substantially continuous stops centrally locatedwith'respect to and opposite said disks, and a plurality of springsmounted within said stops and adapted to normally hold said disks ontheir seats, said springs being provided with plungers surrounding themand contacting with the outer ends of said springs and with the disksaforesaid.

ln testimony whereof l hereto atlix my signature in the presenece of twowitnesses.

EDWlN E. SLICK. Witnesses:

OLIVER B., Hicken, ELMER Snavnf.

